A field is in the shape of an equilateral triangle in which the length of each side is $70\, m$. A cow is tethered at one of its vertices by a $5 \,m$ long rope. Find the area of the region in the field in which the cow can graze. $(\pi=3.14)$ (in $m^2$)
$13.08$
$12.54$
$11.03$
$23.01$
The radius of a circular ground is $35 \,m$. Outside it, runs a road of width $3.5\, m$. Find the area of the road. (in $m^2$)
In a circle with radius $6.3\, cm$, an are subtends an angle of measure $150$ at the centre. Find the length of this arc and the area of the sector formed by this arc.
As shown in the diagram, $\overline{ OA }$ and $\overline{O B}$ are two radii of $\odot( O , 35 cm )$ perpendicular to each other. If $OD =12\, cm ,$ find
the area of the shaded region. (in $cm^2$)
The union of a chord of a circle and its corresponding arc is called $\ldots \ldots \ldots \ldots$
Find the area of the minor segment of a circle of radius $14\,cm$, when the angle of the corresponding sector is $60^{\circ} .$ (in $cm ^{2}$)